Tran Thi Thuy Hoa, secretary-general of the Vietnam Rubber Association, said that in 2011, the…
The role of the vacuum pump is to extract gas molecules from the vacuum chamber, reducing t…
Solutions to different noise problems of regulating valves 1) Tandem silencer method This me…
In recent years, sensors are in the stage of transition from…
On the morning of October 19th, the 13th International Po…
Yesterday, the sky2003n open high-speed CNC engraving and milling machine lau…
The foreign technology in X-ray diffractometers has devel…